The cost to run an RV air conditioner depends on five things: the AC's power consumption, how many hours it runs, your electricity price, its duty cycle (how much of that time the compressor actually runs at full load), and which power source you are using: shore power, a generator, or a solar battery backup solution. The core formula is simple: operating cost = electricity used × price per kilowatt-hour, and electricity used is just power draw × time. Here is a simple example: an RV AC averagin